Jürgen Espenhorst
Petermann's PlanetA Guide to German Handatlases and their Siblings throughout the World 1800-1950
Volume I: The Great Handatlases
Edited and translated from the German text by George R. Crossman
Pangaea Verlag, Schwerte 2003
ISBN-13: 978-3-930401-35-2 (ISBN-10: 3-930401-35-5)

Jürgen Espenhorst
Petermann's PlanetA Guide to German Handatlases and their Siblings throughout the World 1800-1950
Volume II: The Rare and Small Handatlases includig Globes
Edited and translated from the German text by George R. Crossman
Pangaea Verlag, Schwerte 2008
ISBN-13: 978-3-930401-36-9 (ISBN-10: 3-930401-36-3)